I'm planning to migrate a set of servers to a new SAN. All servers use multipath, with (most) storage in LVM. As far as I can see the strategy should be to hook them up to the new SAN, present new LUNs and do a pvmove to the new disk, and vgreduce/pvremove'ing the old disks.
All servers are RHEL5. Volume sizes range from small to several hundred GB.
Are there any scenarios where I would not be able to run an online pvmove to migrate storage?
Thanks for any input on planning for storage migration.